Chain



(No Model.)

W. C. EDGE.

CHAIN.

No. 419,189. Patented Jan. 14,1890.

y @nul JM A/75% Arme/vn@ UNITED STATES PATENT OFFICE.

IVILLIAM C. EDGE, OF NEVARK, NEIV JERSEY.

CHAIN.

SPECIFICATION forming part of Letters Patent No. 419,189, dated January14, 1890.

Application filed May l0, 1389. Serial No. 310,219. (No model.)

To all whom, it may concern,.-

Be it known that I, WILLIAM C. EDGE, of Newark, Essex county, NewJersey, have invented an Improved Chain, of which the following is aspeciication.

The object of my invention is the production of a tubular elastic chain;and the invention consists in the novel details of improvement that willbe more fully hereinafter pointed out.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which Figure 1 is a side elevation of a portionof a chain constructed according to my invention, part of the chainbeing drawn out and partially unwound, so as to show the manner ofconstructing the same. Fig. 2 is anenlarged detail sectional view takenon theline c c, Fig. 3. Fig. 3 is an end view ot' my improved chain; andFigs. 4 and 5 are detail views of a modification.

In constructing my improved chain I form two spirally-arranged wires al), that are interlooped, as clearly indicated in the lel:`t hand partof Fig. 1 and in Fig. 2. By this means the wires ab may have a lateralmovement upon each other, as indicated by the ar# rows in Fig. 1; butcannot be disconnected, as shown in said ligure. After the double coil Ais made, as above indicated, I form a tubular length of chain B bywinding the double coilA in a spiral, as indicated in Figs. 1 and 4. Ialso wind around the tubular length ll of chain a spiral band D, ofsuitable metals that comes between the meeting edges of the coils a l),as indicated in Fig. 1.

The wires a l) of the double coil A, I secure to the band D as follows:I secure one edge of the wire o. at d. to the band D on one side and thewire l), I secure similarly on the opposite side to the band D at e, asclearly indicated in Fig. 2. By this means when the chain is drawn uponthe wire a., that is connected to one side of' the band D, will bepulled to some extent away from the wire l), connected to the other sideof the band Dand as the two wires a b are interlocked they cannot becomeseparated, but a longitudinal movement is permitted to the chain. Thisconstruction of chain will be found very strong and durable, while aspring-tension is given to the chain on account of the spiralarrangement of the double coil A and band D, which tends to draw thespirals together.

It is evident that the chain may be made without using the band D toconnect the coils a l). This construction is shown in Figs. et and 5,wherein the meeting edges of the wires a and D of the double coil A aresoldered together at f, meaning that every right-hand end of every coila is soldered or otherwise secured to the nearest left-hand end of coill).

Having now described my invention, what I claim is- 1. As `an improvedarticle of manufacture, a chain constructed of interlooped coils a l),said coils a l) on their meeting edges being alternately connectedtogether, as specilied.

2. The double coil A, formed of the interlooped coils a l), combinedwith the spiral band D, placed between the coils, the edge of the coil abeing secured to the band D at one side and the edge of the coil b beingsecured to the band D at the opposite side thereof, substantially asdescribed.

VILLIAM C. EDGE. \Vii.nesses:

THEO. F. oURNE, FRANK II. EDMiUNDs.

